Have you got a current driving licence? writing expert Facebook began showing mobile advertisements for the first time last spring. It reported after the market closed Wednesday that those advertisements accounted for a whopping 41 percent of its total advertising revenue in the most recent quarter. 必須 2000文字以内 [bbs:youtube:(Youtubeの動画ID)]と書くとYoutubeの動画が貼れます。(例:[bbs:youtube:OQThUAQ0UN0])